29 May

Masha completes a journey in three stages.
In stage 1 of his journey, she drives at an
average speed of 30km/h for 45 minutes.
๐Ÿ‘†๐ŸผHow far does Masha travel in stage 1 of her

In stage 2 of her journey, Masha drives at
an average speed of 50km/h for 2 hours 48 minutes.
Altogether, over all three stages, Masha drives 200 km in 4 hours.

๐Ÿ‘‡๐ŸผWhat is her average speed, in km/h, in stage 3 of her journey?

๐Ÿ–๐Ÿผ Simplify \frac{x+9}{4x} + \frac{7}{3x}

๐Ÿ‘‰๐Ÿผ The force, F, between two magnets is inversely proportional to the square of the distance, d, between them.
When F = 4, d = 3.
Express F in terms of d.

๐Ÿ‘ˆ๐Ÿผ Without a calculator, estimate the value of 50^{ - \frac{3}{2} }

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